Kossakowski

Kossakowski (Kosakovskiai) was an aristocratic family of Mazovian origin.

They were first mentioned in the 13th century and initially settled in Ciechanów County, from where they branched out to the Grand Duchy of Lithuania, Podolia, Volhynia, and Livonia.

Coat of arms
Coat of arms of the Kossakowski family was Ślepowron.

Notable members

 * Jan Nepomucen Kossakowski (1755–1808), bishop of Inflanty and later of Vilna
 * Józef Dominik Kossakowski (1771–1840), colonel, member of the Targowica Confederation, son-in-law of Stanisław Szczęsny Potocki
 * Józef Kossakowski (1772–1842), general of French army, aide-de-camp of Napoleon
 * Józef Kazimierz Kossakowski (1738–1794), bishop of Inflanty, a member of the Targowica Confederation
 * Szymon Marcin Kossakowski (1741–1794) one of the leaders of the Targowica Confederation and the last Great Hetman of Lithuania.
 * Michał Kossakowski (1733–1798) – voivode of Witebsk and Bracław Voivodeship
 * Antoni Kossakowski (1735–1798) – castelan in Livonia
 * Jakub Kossakowski (1752–1784) – podstoli of Kowno
 * Jan Nepomucen Kossakowski (1755–1808) – bishop of Inflanty and Wilno
 * Adam Kossakowski (1756–1828) – auxiliary bishop of Inflanty and Wilno, Jesuit
 * Andrzej Kossakowski (1929–1992) – art historian
 * Grzegorz Kossakowski, Polish bobsledder